<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script>
      window.requestAnimFrame = function () {
        return (
          window.requestAnimationFrame ||
          window.webkitRequestAnimationFrame ||
          window.mozRequestAnimationFrame ||
          window.oRequestAnimationFrame ||
          window.msRequestAnimationFrame ||
          function (callback) {
            window.setTimeout(callback);
          }
        );
      };

      function init(elemid) {
        let canvas = document.getElementById(elemid),
          c = canvas.getContext('2d'),
          w = (canvas.width = window.innerWidth),
          h = (canvas.height = window.innerHeight);
        c.fillStyle = 'rgba(30,30,30,1)';
        c.fillRect(0, 0, w, h);
        return { c: c, canvas: canvas };
      }
    </script>
  </head>
  <body id="dummybodyid">
    <link
      rel="stylesheet"
      href="http://v.bootstrapmb.com/2019/12/4ur2w6896/style.css"
    />
    <canvas id="canvas" width="904" height="255"></canvas>
    <script src="http://v.bootstrapmb.com/2019/12/4ur2w6896/script.js"></script>
  </body>
</html>
